🚀 go-pugleaf

In <e58d56ae.0302041421.1a0f6391@posting.google.com>, whopkins@csd.uwm.edu (Alfred Einstead) writes:
>Green Dehydrated Amphibian <GDA@dragon.ch> wrote:
>> 1915: Albert Einstein proposes the theory of general relativity, which
>> equates gravity to the curvature of space-time. 
>
>Technically, this is not what General Relativity does.  You can
>also equate gravity with the curvature of space-time in Newtonian
>Physics.  The structure is different: a 1-dimensional fibre bundle
>with a 3-dimensional fibre.
>
>What distinguishes General Relativity is NOT that it unifies
>gravity and space-time curvature (since the unification is also
>done with Newtonian gravity), but that it unifies it in the
>setting of a Lorentzian manifold.
>
>Even more to the point: even in Newtonian Physics, there will
>still be a Big Bang Universe.
>
>The existence of a Big Bang universe has nothing per se to do
>with Relativity.  It comes from the simple logic of answering
>the childhood question "why doesn't everything fall to the ground?"
>(which, in adult terms, is rendered as "why doesn't everything
>fall into each other?").
>
>No matter where you start or what point of view you take, there
>are only 4 alternatives.  Either
>     (1) Everything IS falling into each other (or is about to
>         start doing so)
>     (2) Everything is flying apart from one another
>     (3) Everything is in universal rotation
>or
>     (4) Gravity behaves different at long distances.
>
>Not(4) implies (1) or (2) or (3).  Not (4) and not (3) imply (1) or (2).
>And not (4), not (3) and not (2) imply (1).


Where to should everything be falling, flying, or rotating as the
result of some big bang, - or to enable some big bang?

Which kind of logic correlates "everything" or "the movement of
everything" with the idea of a "big bang"? - Some war-movies?
Childish observation of a seagull's droppings in free fall?

Are we talking about an im- or exploding "big bang", or perhaps
about several minor/major/average such or what "bangs" created
by which great bang-man?

Ole D. Rughede